WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF
COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??

Answer Posted / prakash suhane

Rating of cable depend on various factors like
1) Size of cable
2) No.of cores
3) Type of Insulation
4) Laying in air/ underground
5) Multi strand or single strand

Is This Answer Correct ?    144 Yes 7 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

1728


Define conversion efficiency of a power amplifier.

712


i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

1164


what is the difference between vector scale and vector diagram?

3794


How to select transmission line type (i.e. 11kv or 33kv) for new established industries

1612






When we connect the large capacitor bank in series ?

621


why output is out of phase in case of common emitter?

1682


PAC and simple Ac different

977


How to measure the earth resistance value in a concrete pavement(flood light area)?

1738


In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

1296


state the working principle of incondenscent tube?

1539


What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

912


How can we calculate the motor frame sizes?

2924


I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

1462


how to compare with Relay settings for HT< panels, RMU panel, and PSS CSS transformer?? 1) Load amps, 2)Tripping time, 3) CT ratio, 4)Cable size 5) Transformer KVA rating 6) transformer full load amps

744